Hello, Jonas Meurer from Debian Cryptsetup Team has send me this e-mail address (dm-crypt@xxxxxxxx) as this is the best place for my question: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494584#15, says about a XTS detriment on security on large filesystems. But in the wikipedia's discussion: http://en.wikipedia.org/wiki/Talk:Disk_encryption_theory#Issues_with_XTS "Issues with XTS There is also an issue about the size of the filesystem encrypted with the support of XTS. This is discussed here: http://lists.alioth.debian.org/pipermail/pkg-cryptsetup-devel/2008-September/002265.html —Preceding unsigned comment added by 62.2.182.207 (talk) 19:40, 1 April 2010 (UTC) This is a misconception, since it does not apply to large filesystems (containing many data units/sectors, which are encrypted totally indepently), but to very large single data units, i.e.: The size of any single data unit should not exceed 270 bytes. The data unit size for a typical filesystem is between 512 and 64536 bytes only (29/216).93.205.111.251 (talk) 15:37, 2 April 2010 (UTC)" So, XTS has collision troubles with >500 GB or >1TB of data, or, it's a misconception and there isn't any issue about this on large filesystems. Thanks in advice. _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
